Then situation is a bit better now, since we did not continue to submit as many Para. However, the builds are still lagging (there are ones from 20hr ago running). I see many of the new "cancelling duplicates" jobs queued but they have not yet run. I have cancelled a few myself. In case I cancelled a running one by mistake, please apologize. I would suggest we give the system a while to catch up.
In the meantime, if you are force pushing a PR, please rebase first. Also, I agree about simplifying macOS build if it will help while we get to q better situation. Best, Matias